CN1897871A

CN1897871A - Intelligent medical vigilance system

Info

Publication number: CN1897871A
Application number: CNA2004800387841A
Authority: CN
Inventors: P·K·沙利文; M·S·格雷; P·M·恩布里
Original assignee: HEINA MEDICAL CORP
Current assignee: HEINA MEDICAL CORP; Hoana Medical Inc
Priority date: 2003-12-04
Filing date: 2004-12-03
Publication date: 2007-01-17
Anticipated expiration: 2024-12-03
Also published as: EP1694202A4; CN100544667C; AU2004296792B2; HK1094861A1; JP2007518470A; US20050190062A1; AU2004296792A1; EP1694202A1; WO2005055824A1; EP1694202B1; CA2548231A1; US7304580B2

Abstract

An intelligent medical vigilance system that observes and analyzes, and, only in the event of a clinically significant negative condition, notifies and reports the event to the care staff utilizing the hospital's existing nurse call system. The device includes a bedside unit connected to a pad or coverlet with a sensor array (placed under the patient) and also to an existing hospital nurse call system via an interface. Within the physical bedside unit are a signal processor and an alarm processor that measure data and evaluate whether a clinically significant event is occurring. The bedside unit is a wall-mounted unit with a display that becomes active when an alarm condition is enabled. The sensing pad or coverlet is a thin, piezoelectric film, or other similar sensing technology, with an array of sensors sheathed in soft padding and is not directly in contact with the skin of the patient. The nurse call feature is made up of hardware, software and cabling to connect to the nurse call system already installed in the hospital or care facility. The monitoring system can also be installed in vehicles to monitor operator physiological conditions.

Description

Intelligent medical vigilance system

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] the application requires the rights and interests of No. the 60/526th, 612, U.S. Provisional Application that December in 2003 submitted on the 4th.

[0002] the application will incorporate the full content of No. the 09/662nd, 006, co-pending U. S. application into this paper with way of reference.

Technical field

[0003] the present invention relates generally to monitoring system, more specifically relate to intelligent medical vigilance system, it is used for monitored patient, driver, or other people, these people's physiological conditions may experience and change, and this change shows the trend that is worse off, tends to sleepiness, or other may have the state of great consequence to this people or other people.

Background technology

[0004] medical monitor has been used a lot of years.Typically, medical monitor comprises the patient monitor that is provided with by the specified non-ICU of doctor.

[0005] though exemplary device can be suitable for their handled specific purposes, but they are unsuitable for providing sightless " secure network " for the patient, this secure network will be observed and analyze, and only when clinical great negative condition takes place, just utilize the existing nurse call system of hospital with this event notice with report to the nursing staff.

[0006] subject matter of traditional medical watch-dog is that they are designed to respond vertiginous situation (occurring) in ICU, therefore has high false alarm ratio.Therefore beyond the intensive care unit, these watch-dogs are not connected with remote alarm usually, and local alarm is sounded, excuse me patient and their family and friend, and the flow of nursing work that various clinicist offers the patient also falls into chaos.Carried out multiple trial, so that alarm is more meaningful.

[0007] another problem is, standard device need directly link to each other with patient's skin or health by cable or electric wire.This means in order to stop pick off to disconnect to need restraint patient's motion, and this has also produced the danger of twining or reining in bundle by cable.In addition, these devices are bought quite expensive, and operate also more complicated, need trained personnel correctly to operate.

[0008] therefore, need simpler, more cheap and more accurately method carry out the non-intrusion type vital sign monitoring of great negative condition, and report these incidents.The invention solves these demands and other demand.

Summary of the invention

[0009] in brief, the present invention relates generally to a kind of new improved intelligent medical vigilance system, and it is used to provide sightless " secure network ", this secure network observation and analyst's vital sign.Only when clinical great negative condition took place, described device just used for example existing nurse call system of hospital, with this event notice with report to the personnel or the nursing staff of medical care mechanism.Like this, the present invention has just expanded vigilance performance and hospital clinical personnel's " arrival ", and their resource can more effectively be utilized.

[0010] the present invention has many advantages and many features with novelty of the medical monitor of mentioning before this, these features with novelty have caused a kind of new intelligent medical vigilance system, and this system is not by the medical monitor of any prior art individually or combination in any ground predict, provided apparently, advises or or even hint.

[0011] in a current preferred embodiment, need not as limiting as example, the present invention usually comprises a side unit, it is connected to sensor array (being placed under the patient), and is connected to existing hospital nurse calling system by interface.This sensor array is non-intruding piezoelectric sensing film or other similar sensing technology preferably, and wherein sensor array is installed at the bottom of patient's sick bed in the soft packing under the blanket.Described sensor array does not directly contact patient skin.In the bed side unit of reality a signal processor and an alarm processor are arranged, whether their measurement data and estimation clinical important event takes place.

[0012] described bed side unit is an installation unit on the wall with display, and this display perhaps contacts the order that any key produces by the nurse and activates (operation) when alarm situations is enabled.This display has the soft key button and the controller of many special uses, is used for input information, specific project is set and carries out alternately with system.

[0013] sensor array is piezoelectric film or other the similar sensing technology that approaches, and wherein sensor array is encapsulated in the easy cleaned soft packing.It is placed in the sick bed and end blanket (and other waddings, if necessary) under, directly do not contact patient's skin.If desired, sensor array can be incorporated in the mattress sheet.Monitoring system of the present invention also can be used in the seat, to come the relaxation state of supervision subjects by heart rate, blood pressure and breathing rate.

[0014] the nurse call station device is made up of hardware, software and cable, to be connected to mounted nurse call system in hospital or the care institutions vibrations.Signal processor is made up of hardware and software, its reception, buffer sensor array signal, and it is converted to digital form from analog form, be used for subsequent treatment.Alarm processor uses logic to come monitoring parameter trend, and determines when the generation negative condition.Then, it starts the circuit for alarming that is used for this locality and/or remote alarm.Can use soft alarm unfavorable trend of report before emergency occurs.All alarms can interact with existing nurse call system in the hospital.

[0015] in replaceability embodiment, intelligent medical vigilance system of the present invention can be suitable for use as the operator's of motor vehicles, aircraft or other device monitoring system.The present invention is installed among one or more in the following zone of motor vehicles: seat, backrest, headrest, steering wheel or steering wheel, driving clothes, perhaps driving helmet.One or more pick offs can be placed in each general position, think that improveing feedback prepares.Vehicle operators is portability one a wrist auxiliary equipment or a necklace also, they are all built-in pick off.

[0016] pick off in the vehicle is transferred to central processing unit by hardwired or wireless technology with patient information, and this central processing unit is to be structured in the vehicle.This processor is analyzed input information, and dateout as required.Warning system can be used to give a warning to the driver: the driver is near sleep state or have the physical condition of other potential danger, thus the minimizing accident.The heart rate of these sensor measurement vehicle operators, breathing rate and motion.

[0017] compensates for the accurate reading of ambient noise signal effectively with heart rate, breathing rate and blood pressure that the operator is provided.This setoff can be worked this monitoring system effectively under high background noise environment.

[0018] tendency information also is recorded and can be used for studying.

[0019] the invention provides an intelligent medical vigilance system, it has overcome many shortcomings of prior-art devices.

[0020] in a preferred embodiment, the invention provides an intelligent medical vigilance system, it provides sightless " secure network " for the patient, this secure network will be observed and analyze, and only when clinical great negative condition takes place, utilize the existing nurse call system of hospital with event notice with report to the nursing staff.

[0021] in a further preferred embodiment, the invention provides an intelligent medical vigilance system, its not with situation that skin directly contacts under observation (monitoring) a plurality of physiological signals.

[0022] in another further embodiment, the invention provides an intelligent medical vigilance system, its analytical information, with determine parameter whether within normal limit or parameter whether be tending towards entering into clinical negative direction.

[0023] one further aspect in, the invention provides an intelligent medical vigilance system, its report physiological parameter also provides their time dependent trend.

[0024] in aspect another is further, the invention provides an intelligent medical vigilance system, its when detecting consistent negative condition just by medical institutions in used existing nurse call system notify the nursing staff.

[0025] in aspect another is further, the invention provides an intelligent medical vigilance system, it reminds the lasting violation of nurse or the situation of deterioration incessantly, till intervening successfully.This provides an intelligent medical vigilance system on the one hand, and " arrival " that it has expanded vigilance performance and busy clinical staff has optimal clinical effect part thereby they can be used in the time.

[0026] on the other hand, the invention provides a sensing system that is arranged in vehicle, the warning that it sends dangerous physiological conditions to the operator, this danger physiological conditions will weaken the ability of operator's safety operation equipment.

[0027] according to the detailed description that provides in conjunction with the accompanying drawings subsequently, these advantages of the present invention and other advantage will become more obvious, and accompanying drawing has illustrated feature of the present invention by way of example.

Description of drawings

[0028] Fig. 1 is the sketch map that the present invention guards against monitoring system.

[0029] Fig. 2 is the block diagram of systemic-function.

[0030] Fig. 3 shows the process that develops into negative event and nurse's response from the normal patient situation.

[0031] Fig. 4 is the multiparameter time space graph, has shown the violation and the alarm logic of various parameters.

[0032] Fig. 5 is the multiparameter alarm summary, has shown the alarm logic.

[0033] Fig. 6 is the sketch map that shows the various configurations of pick off in the vehicle.

The specific embodiment

[0034] Fig. 1 shows intelligent medical vigilance system 1, and it comprises the bed side unit 3 that is connected to sensor array 5 (being placed under the patient), and this side unit 3 also is connected to an existing hospital calling system 7 by interface 9.In the bed side unit 3 of reality signal processor and alarm processor are arranged, whether its measurement data and estimation clinical important event takes place.The monitoring system that the present invention also can be used as in the vehicle is used.

[0035] bed side unit 3 is installation units on the wall that has a display 9, and display 9 perhaps contacts the order that any button produces by the nurse and activates (operation) when alarm situations is enabled.Display 9 has the soft key button and the controller of many special uses, is used for input information, specific project and and system interaction are set.

[0036] though can use various types of pick offs, sensor array 5 is preferably the form of thin piezoelectric film sensor array, and it is packed or be wrapped in the easy cleaned soft packing.It is placed in patient's the bed 11 and end blanket (bottom sheet) (and other waddings, if necessary) under, directly do not contact patient's skin.Sensor array 5 can be integrated at the bottom of the sick bed in the soft packing under the blanket.

[0037] nurse call station device 7 is made up of hardware, software and cable, to be connected to the nurse call system that is installed in hospital or the care institutions vibrations.

[0038] signal processor is made up of hardware and software, its reception, buffer sensor array signal, and it is converted to digital form from analog form, be used for subsequent treatment.Tendency information is recorded and can be used for studying.

[0039] this alarm processor uses logic to come monitoring parameter trend, and determines when the generation negative condition.It then moves the circuit for alarming that is used for this locality and/or remote alarm.Can use soft alarm, with the unfavorable trend of report before emergency occurs.

[0040] Fig. 2 has shown the sketch map of monitor procedure of the present invention.Fig. 3 has shown the sketch map that develops into negative event and nurse's response from the normal patient situation.

[0041] has in the patient monitoring device of alarm at all, the user can be provided with " firmly " alarm limit value, be those high and low single parameter limit values, when surpassing such limit value, will cause alarm indication, alarm signal and alarm sound, can send them to nursing staff by the device of any number.This nursing staff responds, to correct this situation.The problem that this class alarm causes is false alarm to occur, and promptly those are sounded by instantaneous surpass because of set threshold value, but with the irrelevant alarm of clinical important event.For the close supervision patient, the alarm limit value can be set up and approach patient's parameter current value.But be set to approachingly more, may occur that more: less actual parameter variation, patient moving or other signal " noise " will make measured parameter surpass set alarm limit value.

[0042], also only be the value that seldom alarm meeting uses time-delay outside the filtering or extra process to come calculating parameter meansigma methods and display parameters even have.Multiple trial has been arranged, so that relax the deficiency of the simple alarm of this class in the intensive care unit.Also have certain methods to be used to delayed alert before a certain special time, because be exceeded with passage outside the scope that the departure degree that exceeds set point combines.

[0043] in an intelligence warning watch-dog (example is intelligence warning watch-dog as used in the present invention), " firmly " alarm limit value is compared with the alarm limit value in the watch-dog of traditional intensive care unit, and is widelyer extensible.Do like this be because monitored patient than typical ICU patient, may be healthy relatively and can move.Because their high activity level, they its measured demonstrate a lot of transmutabilities in such as life parameterses (vitalparameter) such as heart rate, breathing rate, blood pressure, body temperature, heartbeats.Thereby the clinician wishes to monitor these patients' situation, but wishes to avoid false alarm, this false alarm that the patient care workflow is fallen into chaos, and disturbs patient's emotion and attitude.Yet the clinician is also interested in the negative trend that detects the patient, this can make they can fast reaction with treatment or avoid darker, more serious problem.

[0044] Fig. 4 and Fig. 5 shown alarm limit to and the use of algorithm.Fig. 4 multiparameter time space graph has shown different parameters violation and alarm logic.Fig. 5 is the multiparameter alarm summary, has shown the alarm logic.

[0045] in order to realize equilibrium response, watch-dog of the present invention have two or more alarm limit values of distinguishing to some extent to and algorithm.The purpose of described brand-new alarm scheme is provided with brand-new threshold value within aforementioned each parameter " firmly " limit value, it will capture the situation that the patient is being worsened before by old single " firmly " limit value.Because require these brand-new, soft limit values HR and RR value (in this example) all drop on outside the soft limit value starting alarm, so this is different with mobile these limit values only.As long as one of HR or RR drop on beyond the hard limit value, alarm is just sounded.If HR and RR drop on outside the soft limit value simultaneously, but still within hard limit value, " soft " alarm will be sounded.This describes the clearlyest in Fig. 4.

[0046] parameter that comprised of this alarm scheme is not limited to be used in heart rate and the breathing rate in this example.In fact, nonparametric is that based signal (noise, motion or the like) also can be included in this logical scheme, so that it has clinical value more.In addition, the sensitivity and the specificity of " firmly " alarm, can by use than be used in many systems " whether surpassing limit value? " complicated algorithm and getting a promotion more.This lifting can show as the form of using several different methods, and described several different methods includes but not limited to neutral net and/or fuzzy logic.

[0047] fuzzy logic can be applied in described limit value, and is as follows: (for example, heart rate, breathing rate, blood pressure, body temperature or the like) measured value when it exceeds a certain scope (or band) at measured value, requires alarm to provide one or more physiological parameters.As the fuzzy logic type of functions of having given a definition:

A = Σ_{n = 0}^{N - 1} F_{n} (p_{n})

, an alarm truth-function, it is based on N different parameter or signals, and, the signal truth-function F (p) of each parameter or signal

F (p) = \{\begin{matrix} 1, forp < t_{L 1} \\ > 0 for t_{L 1} \leq p \leq t_{Lh} \\ 0, for T_{Lh} < p < t_{H 1} \\ > 0, for t_{H 1} \leq p \leq t_{Hh} \end{matrix}\}

, it has extra constraint, and promptly F (p) must be at t _H1≤ p≤t _HhMonotonic increase in the scope, and at t _L1≤ p≤t _LhMonotone decreasing in the scope.

[0048] N different physiology fuzzy logic function sum can be used to set up alarm equation (seeing above-mentioned alarm truth-function), and it is further described below: as A 〉=Ta, alarm is sounded, otherwise alarm does not ring.If any weak (or soft) situation (or combination of weak situation) will cause alarm, then Ta typically is set to 0.5.If Ta is set to 1.0, then sound, the strong alarm situations that requires from least one physiological parameter for alarm.Alarm only is equal to or greater than t in physiological parameter if desired _Hh(n) (or less than t _L1(n)) sound the time, then Ta can be set to N.When measuring same physiological parameter, also can use this method by multiple arrangement.

[0049] same physiological parameter is being carried out under the situation of twice measurement, F (p) function will be likely identical for each measurement, and Ta can be set to 1.0, therefore as long as arbitrary device has surpassed t _HLimit value, alarm will be sounded.Alarm is violated that type (hard, soft, or the like) can differ from one another or is identical, and this depends on that specific clinical uses the needs of (ICU and general duty nursing floor, or the like).For each parameter alarm can be set independently,, perhaps can use fixed percentage recently to be provided with, for example in the hard limits 10% of each parameter as soft height and soft low.If desired, logic also can be extended to plural alarm.

[0050] by alarm is delayed time, determines that up to watch-dog signal has surpassed one section specific time span of a certain limit value (for example 10 seconds), can promote the sensitivity of " firmly " and " soft " limit value.The transient change that so just can ignore no clinical meaning in the signal.

[0051] Fig. 6 is that the present invention is installed in the sketch map in the vehicle.Intelligent medical vigilance system of the present invention can be suitable for easily as the monitoring system of motor vehicles, aircraft or other device operator is used.Sensor array of the present invention is installed in the one or more following zone of a certain motor vehicles: seat 13, backrest 15, headrest 17, steering wheel 19, driving clothes 21, perhaps driving helmet 23.One or more sensor arraies can be placed on each general position, think that improveing feedback prepares.Vehicle operators is portability one a wrist auxiliary equipment 25 or a necklace 27 also, they are all built-in sensor array.

[0052] sensor array in the vehicle will arrive central processing unit 29 about patient's the information transmission by hardwired 31 or wireless 33 technology, and this central processing unit 29 is built in the vehicle.This processor is analyzed input information, and according to required dateout.Warning system can be used to give a warning to the driver: the driver is near the physical condition of sleep state or other potential danger, with the minimizing accident.Configurable this pick off is to measure a plurality of parameters, for example heart rate of vehicle operators, breathing rate, blood pressure, body temperature, cardiac output and motion.Similar alarm scheme during intelligent monitor system in this vehicle has used and installed with those hospitals.

[0053] compensates for ambient noise signal effectively so that the operator to be provided the accurate reading of measured physiological parameter.This setoff makes that this monitoring system can operation effectively under high background noise environment.

[0054] although have illustrated and described particular form of the present invention, is apparent that to those skilled in the art,, can carries out multiple improvement without departing from the spirit and scope of the present invention.Therefore, be not intended to make the present invention to be subjected to qualification except that claims.

Claims

1. one kind is used for monitor's physiological function and alarm is provided, and with the method that undesirable situation is given a warning, it comprises:

Contiguous described people places a plurality of pick offs, and it is configured to detect described people's physiological parameter;

Detect one or more physiological parameters of described people with described pick off;

With the Parameters Transformation that is detected is signal;

For each physiological parameter is distributed hard scope on the signal value;

For each physiological parameter is distributed hard scope under the signal value;

For each physiological parameter distributes one to be lower than soft scope on the described signal value of hard scope, wherein saidly soft scope and be selected to a described predetermined downward deviation that hard scope of distance;

Distribute soft scope under the signal value that is higher than described hard scope down for each physiological parameter, wherein said soft scope down is selected to the predetermined to the upper deviation of a described hard scope down of distance;

Analyze at least two signals in the above signal of a period of time, to determine which scope each signal is in; And

When being in the hard scope, at least one signal starts alarm, and

When being in the soft scope, at least two signals start alarm.

2. method according to claim 1 wherein starts alarm and comprises start hard alarm when at least one signal is in the hard scope, and start soft alarm when at least two signals are in the soft scope.

3. method according to claim 1 wherein starts alarm and comprises that the use fuzzy logic starts alarm, to evaluate the importance of a plurality of signals that interrelate with described hard scope and soft scope.

4. method according to claim 1, wherein each described a plurality of pick off is configured to detect described people's identical physiological parameter.

5. method according to claim 1, each in wherein said a plurality of pick offs all is configured to detect described people's a plurality of different physiological parameters.

6. method according to claim 1, wherein said pick off are configured to detect at least two physiological parameters, and described at least two physiological parameters are selected from the group that is made of heart rate, breathing rate, blood pressure, body temperature, motion and noise emission.

7. method according to claim 1, wherein said signal value scope is distributed by the nursing staff, and can optionally change.

8. method according to claim 1, wherein said soft scope is chosen to have a lower limit automatically, this lower limit is a described predetermined percentage that the lower limit of hard scope, and soft scope is chosen to have a upper limit automatically under described, and this upper limit is a described predetermined percentage of the upper limit of hard scope down.

9. method according to claim 1, wherein each parameter is assigned with a different soft scope.

10. method according to claim 1, wherein said size and described varying in size of soft scope down of soft scope.

11. one kind is used for the monitored patient physiological function and alarm is provided, with the method that undesirable situation is given a warning, it comprises:

Contiguous described patient places a plurality of pick offs, and described a plurality of pick offs are configured to detect described patient's physiological parameter;

Detect one or more physiological parameters of described patient with described pick off;

With the Parameters Transformation that is detected is signal;

For each physiological parameter is distributed hard scope on the signal value;

For each physiological parameter distributes one to be lower than soft scope on the described signal value of hard scope;

For each physiological parameter is distributed soft scope under the signal value that is higher than described hard scope down;

Analyze at least two signals in the above signal of a period of time, to determine which scope each signal is in;

When being in the hard scope, at least one signal starts alarm;

When being in the soft scope, at least two signals start alarm; And

By the nurse call system that is pre-existing in the medical care mechanism alarm that is started is conveyed to medical personnel.

12. method according to claim 11 wherein starts alarm and comprises start hard alarm when at least one signal is in the hard scope, and start soft alarm when at least two signals are in the soft scope.

13. method according to claim 11, each in wherein said a plurality of pick offs all is configured to detect described people's a plurality of different physiological parameters.

14. method according to claim 11, wherein said signal value scope is distributed by the nursing staff, and can optionally change.

15. method according to claim 11, wherein said soft scope is chosen to have a lower limit automatically, this lower limit is a described predetermined percentage that the lower limit of hard scope, and soft scope is chosen to have a upper limit automatically under described, and this upper limit is a described predetermined percentage of the upper limit of hard scope down.

16. one kind is used for monitor's physiological function and alarm is provided, with the method that undesirable situation is given a warning, it comprises:

Contiguous described people places a plurality of pick offs, and described a plurality of pick offs are configured to detect described people's physiological parameter;

With the Parameters Transformation that is detected is signal;

For each physiological parameter is distributed hard scope on the signal value;

The signal that the scope intermediate value is increasing in the selection, and the signal that descends the scope intermediate value reducing;

When being in the hard scope, at least one described selecteed signal starts alarm; And

When reaching selecteed signal and be in the soft scope, at least two institutes start alarm.

17. method according to claim 16 wherein starts alarm and comprises start hard alarm when at least one signal is in the hard scope, and start soft alarm when at least two signals are in the soft scope.

18. method according to claim 16, each in wherein said a plurality of pick offs all is configured to detect described people's a plurality of different physiological parameters.

19. one kind is used for monitor's physiological function and alarm is provided, with the method that undesirable situation is given a warning, it comprises:

With the Parameters Transformation that is detected is signal;

For each physiological parameter is distributed hard scope on the signal value;

Fuzzy logic function is applied to each signal in the scope;

When surpassing a predetermined value, described fuzzy logic function sum starts alarm.

20. method according to claim 19, one of them first predetermined value starts soft alarm.

21. method according to claim 19, one of them second predetermined value starts hard alarm.

22. method according to claim 19, wherein said signal value scope is distributed by the nursing staff, and can optionally change.

23. method according to claim 19, wherein said soft scope is chosen to have a lower limit automatically, this lower limit is a described fixed percentage that the lower limit of hard scope, and soft scope is chosen to have a upper limit automatically under described, and this upper limit is a described fixed percentage of the upper limit of hard scope down.

24. one kind is used for monitor's physiological function and alarm is provided, with the method that undesirable situation is given a warning, it comprises:

With the Parameters Transformation that is detected is signal;

Distribute a pair of range signal value that goes up for each physiological parameter, this is lower than another to one in the last range signal value, and consequently a scope is outer scope, and another scope is interior scope;

Distribute a pair of range signal value down for each physiological parameter, this is higher than another to one in the following range signal value, and consequently a scope is outer scope, and another scope is interior scope;

Outside being in, at least one signal starts alarm in the scope time, and

In being in, at least two signals start alarm in the scope time.

25. method according to claim 24 wherein starts alarm and comprises start hard alarm when at least one signal is in the hard scope, and start soft alarm when at least two signals are in the soft scope.

26. method according to claim 24, each in wherein said a plurality of pick offs all is configured to detect described people's a plurality of different physiological parameters.

27. method according to claim 24, wherein said signal value scope is distributed by the nursing staff, and can optionally change.

28. method according to claim 24, wherein said soft scope is chosen to have a lower limit automatically, this lower limit is a described predetermined percentage that the lower limit of hard scope, and soft scope is chosen to have a upper limit automatically under described, and this upper limit is a described predetermined percentage of the upper limit of hard scope down.

29. one kind is used for monitor's physiological function and alarm is provided, with the device that undesirable situation is given a warning, it comprises:

A plurality of pick offs, it is used to detect one or more physiological parameters of described people;

A processor, its Parameters Transformation that is configured to that each is detected is an information signal;

A warning system, it links to each other with described processor, and this warning system is configured to provide one or more alarms;

Wherein said processor is configured to carry out following steps:

For each physiological parameter receives hard scope on the specified signal value;

For each physiological parameter receives hard scope under the specified signal value;

For receiving one, each physiological parameter is lower than soft scope on the described specified signal value of hard scope;

For each physiological parameter receives soft scope under the specified signal value that is higher than described hard scope down;

When being in the hard scope, at least one signal starts alarm; And

When being in the soft scope, at least two signals start alarm.

30. device according to claim 29 further comprises an interface, is used for described warning system is connected to the in-house existing nurse call system of medical care.

31. being installed in one, device according to claim 29, wherein said processor be in the other bed side unit of described people's bed.

32. device according to claim 31, wherein said bed side unit further comprises a display that is connected to described processor, and in order to show physiological data, this display moves when alarm situations takes place automatically.

33. device according to claim 31, wherein said bed side unit further comprises a display that is connected to described processor, and in order to show physiological data, this display optionally starts by curing mainly medical personnel.

34. device according to claim 29, wherein said pick off are assembled into an array that is encapsulated in the sheet.

35. device according to claim 29, wherein said pick off is placed in described people's the bed accessory.

36. device according to claim 29, wherein said pick off comprises the non-invasive sensors of being made by piezoelectric.

37. device according to claim 29, wherein said pick off is installed at least one position, described at least one position is selected from by seat, vehicle seat back, vehicle headrest, steering wheel for vehicle, driving clothes, driving helmet, wrist auxiliary equipment, and in the group of necklace formation.

38. device according to claim 29, wherein said processor is arranged in vehicle.

39. device according to claim 29, wherein said pick off is sent to described processor by wireless technology with the parameter that is detected.

40. device according to claim 28, wherein said alarm are configured to send it near dormant warning to the vehicle driver.

41. device according to claim 29, wherein said pick off are configured to detect at least two physiological parameters, described at least two physiological parameters are selected in the group that freeman's heart rate, breathing rate, blood pressure, body temperature, cardiac output and motion constitute.

42. being further configured, device according to claim 29, wherein said pick off become to make the startup alarm to comprise: when at least one signal is in the hard scope, to start hard alarm, and when at least two signals are in the soft scope, start soft alarm.